A specialist in tropical Leguminosae, began her career in the Botany Department as a technician (1948-1973). She was later promoted to Assistant Curator and eventually to Curator. Her extensive work on legume taxonomy is exemplified in a six-part monograph in Contributions from the United States National Herbarium (1955-1968). The Mexican legume genus, Ruddia, was named in her honor. Her collections includes many species shows in the chart below.
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